Patch "rtl8xxxu: Fix rtl8723bu driver reload issue" has been added to the 4.8-stable tree

Patch "rtl8xxxu: Fix rtl8723bu driver reload issue" has been added to the 4.8-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    rtl8xxxu: Fix rtl8723bu driver reload issue

to the 4.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     rtl8xxxu-fix-rtl8723bu-driver-reload-issue.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From ab05e5ec81c76f3a852919c22984c885edd2414a Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Fri, 30 Sep 2016 19:35:17 -0400
Subject: rtl8xxxu: Fix rtl8723bu driver reload issue

From: Jes Sorensen <Jes.Sorensen@redhat.com>

commit ab05e5ec81c76f3a852919c22984c885edd2414a upstream.

The generic disable_rf() function clears bits 22 and 23 in
REG_RX_WAIT_CCA, however we did not re-enable them again in
rtl8723b_enable_rf()

This resolves the problem for me with 8723bu devices not working again
after reloading the driver.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
@@ -1498,6 +1498,10 @@ static void rtl8723b_enable_rf(struct rt
 	u32 val32;
 	u8 val8;
 
+	val32 = rtl8xxxu_read32(priv, REG_RX_WAIT_CCA);
+	val32 |= (BIT(22) | BIT(23));
+	rtl8xxxu_write32(priv, REG_RX_WAIT_CCA, val32);
+
 	/*
 	 * No indication anywhere as to what 0x0790 does. The 2 antenna
 	 * vendor code preserves bits 6-7 here.


Patches currently in stable-queue which might be from Jes.Sorensen@redhat.com are

queue-4.8/rtl8xxxu-fix-memory-leak-in-handling-rxdesc16-packets.patch
queue-4.8/rtl8xxxu-fix-big-endian-problem-reporting-mactime.patch
queue-4.8/rtl8xxxu-fix-rtl8723bu-driver-reload-issue.patch